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Chapter 2
Serial Port Connector: COM A & COM 2
The mainboard has two 9-pin serial port connectors, one (COM A) in the back
panel and one (COM 2) on-board. You can attach a serial mouse or other serial
devices to them.
COM A
1 2 3 4 5
6 7 8 9
9-Pin Male DIN Connectors
COM 2
VGA DB 15 Pin Connector
The mainboard provides one DB 15-pin female connector to connect a VGA
monitor.
5
1
15
11
DB 15-Pin Female Connector
Pin Definition
PIN
SIGNAL
DESCRIPTION
1
DCD
Data Carry Detect
2
SIN
Serial In or Receive Data
3
SOUT
Serial Out or Transmit Data
4
DTR
Data Terminal Ready
5
GND
Ground
6
DSR
Data Set Ready
7
RTS
Request To Send
8
CTS
Clear To Send
9
RI
Ring Indicate
Pin Definition
Analog Video Display Connector (DB-15S)
PIN
SIGNAL DESCRIPTION
1
Red
2
Green
3
Blue
4
Not used
5
Ground
6
Ground
7
Ground
8
Ground
9
Power
10
Ground
1 1
Not used
12
SDA
13
Horizontal Sync
14
Vertical Sync
15
SCL
2-12
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